France's Iliad reaches for T-Mobile

France’s Iliad – the parent company of the low-cost mobile operator Free – has made a surprise bid for T-Mobile US. It marks a new attempt at expansion for the firm that changed the landscape of France’s mobile market, and could spark a bidding war in the US. Plus, what’s next for Argentina after its second default in 13 years? Finally, why are the French such bad tippers?